[ExI] On a more extropian note...

[Dan TheBookMan]

On Mon, Sep 28, 2020 at 6:55 PM John Clark via extropy-chat
<extropy-chat at lists.extropy.org> wrote:
> On Mon, Sep 28, 2020 at 1:45 AM Adrian Tymes via extropy-chat <extropy-chat at lists.extropy.org> wrote:
>>> >The paper is less than the article seems.
>> >To be short and only somewhat imprecise, it's a better proof than previously existed that, if you assume no Grandfather Paradox, then you get no Grandfather Paradox
>
>
> Yeah, if you can't change the past then you haven't really visited the past you've just observed the past. And we can already do that with old movies.

Is that observing the past or observing a present artefact? You might
as well say looking at a street sign put up years ago is observing the
past.

Regards,

Dan
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